Update utils/database.py

utils/database.py

@@ -122,6 +122,22 @@ def insert_document(conn, name, content):
         st.error(f"Error inserting document: {e}")
         return None
 
+def verify_vector_store(vector_store):
+    """Verify that the vector store has documents loaded.
+    
+    Args:
+        vector_store: FAISS vector store instance
+        
+    Returns:
+        bool: True if vector store is properly initialized with documents
+    """
+    try:
+        # Try to perform a simple similarity search
+        test_results = vector_store.similarity_search("test", k=1)
+        return len(test_results) > 0
+    except Exception as e:
+        st.error(f"Vector store verification failed: {e}")
+        return False
     
 def initialize_qa_system(vector_store):
     """Initialize QA system with proper chat handling."""